Apparatus for the dry cooling of coke



Feb. 25, ma.

A. MOETTELI 2,931,843

APPARATUS FOR THE DRY COOLING OF COKE h Filed Nov. 17, 193:5

d@ @E Figi f7 mxwwmf am @fvw- Patented Feb. 25, 1936 entree STATES PATENT OFFICE APPARATUS FOR THE DRY COOLING COKE Application November 17, 1933, Serial No. 698,413 In Switzerland November 23, 1932 l Claim.

This invention relates to an improved apparatus for the dry cooling of coke, in which the coke is cooled by passing cooling gas or air through it.

In accordance with this invention the cooling gas is caused to flow over the walls of the coke container before passing through the coke therein. It is thus possible to protect the container from overheating in a very simple and cheap manner.

In one form of apparatus for carrying out the improved method of this invention, the coke container is disposed in a closed chamb-er into which the cooling gas ows rst and thence through the container to the gas outlet. Preferably the gas outlet of the container is connected to the gas outlet of the chamber. In a convenient construction the gas outlet of the chamber is arranged at the upper part thereof and the container, which is preferably provided with wheels or is otherwise transportable, has its top open and adapted to register with and engage the gas outlet with a gas-tight joint. The cooling gas may be introduced into the chamber through two or more openings in the upper part thereof,

In another form of apparatus for carrying out the'method according to this invention the container is provided with double walls which are spaced apart the outer walls forming a closed chamber and the cooling gas flowing through the space between these walls before passing through the coke, baliies preferably being provided to increase the length of the gas path in the space between the walls. Conveniently the container is provided with wheels or is otherwise transportable and has a gas inlet opening which, when the container is in position for cooling will automatically engage and be maintained in engagement with a iiexible pipe through which the cooling gas is supplied.

The following is a description, by way of example, of two arrangements of cooling apparatus according to this invention with reference to the accompanying drawing, in which Figure 1 is a side elevation in section on the line ll-I of Figure 2 of one arrangement,

Figure 2 is a sectional end elevation on the line II-II of Figure 1,

Figure 3 is a sectional side elevation on the line III-III of Figure 4 of the other arrangement, and

Figure 4 is a horizontal section on the line IV-IV of Figure 3.

In the apparatus shown in Figures 1 and 2, a portable coke container a having a perforated bottom and an open top is employed for conveying the hot coke from the ovens, not shown, to the cooling apparatus. This apparatus comprises a closed chamber d having walls of brick and a roof e with a central aperture g which,

as will be more fully explained below, constitutes 5 the outlet for the cooling gas. Mounted above the chamber d preferably on extensions of the side walls of this chamber, is a heat exchange apparatus c which conveniently consists of a Water tube boiler for generating steam. The

coke container a is wheeled into position through a door in the chamber d, which is then closed, and is supported in this chamber so that the upper edges of the side walls of the container engage the roof e of the chamber around the aperture g therein in such a manner as to form a substantially gas-tight joint. The cooling gas in the chamber can thus only reach the outlet opening g after it has passed through the perforated bottom of the container a and the coke therein. Gas inlet openings f are provided round the upper part of the chamber d and are connected to a blower b which causes the circulation of the cooling gases, as indicated by the arrows, from the heat exchange apparatus c into the heat which they have extracted from the coke.

Since the cooling gas supplied to the upper part of the chamber d must pass down the outside of the walls of the container before it passes through the coke, it will be appreciated that these walls are adequately cooled. In order to ensure that the edges of the container walls make a gas-tight joint with the roof e of the chamber d, a flexible packing gland h is provided on the underside of the roof e around the opening g therein.

In the alternative form of apparatus shown in Figures 3 and 4 a transportable coke container a is provided with double walls separated by a space i through which the gas flows prior to passing through the coke. The outer wall is provided with a gas inlet opening o which, when the I container is wheeled into position in the apparatus, is engaged automatically by a flexible pipe Z having a flange lc which is pressed against the inlet vopening in the container wall by means of a spring m which tends to extend the flexible tube Z. The heat exchange apparatus is mounted in a suitable position so that the container a can be wheeled underneath it, the edges of the container wall engaging with the downwardly projecting iianges lc which are provided with suitable flexible packing members to ensure a gastight joint between the `open top of the container and the heat exchange apparatus. When in operation the cooling gas is caused by the blower vl) to circulate from the heat exchange apparatus c through the inlet opening o in the outer Wall of the container and the space between the double Walls, baiies p preferably being provided, as indicated by the dotted lines in Figure 3, to increase the length of the path of the gases between these Walls, and then through perforations r in the inner wall .of the container and up through the coke to the heat exchange apparatus.

It will be appreciated that in both the arrangements described above any convenient means may be provided for maintaining the coke container in position in the cooling apparatus.

I claim:

Apparatus for dry-cooling coke, comprising a closed chamber, a movable car adapted to contain a load of hot coke to be cooled in said chamber,

tially gas-tight joint therewith, whereby uid entering said compartment when the opening in the top of the car is in registration with said inlet must rst pass through said car, and means for directing a fluid completely around and in contact with the sides of the car and through 15 said louvres into and through a body of coke contained in said car, and then over the heat exchanger and back into contact with the side walls of the car, said means including a passage from the heat exchanger compartment to said 20 chamber and means for causing a circulation of uid through said passage.

ARNOLD MOET'I'ELI. 

